Upload
others
View
2
Download
0
Embed Size (px)
Citation preview
HOMEWORK 1
1)
2)
3)
5)
4)
7) a) Determine the angle “”.
b) Determine the surface area of triangular face AFG.
c) Determine the vector component of parallel to the line AG. Also determine the normal component of F
to
the line AG. A force F
is directed along edge AH as shown (F=486 N)
d) What is the minimum distance from point A to the line EL?
F
A (2,2,4)
B (0,2,4) (0,0,4) C 1 m
L
1 m
2 m
(2,0,4) D
H (0,6,0)
G (5,7,0)
F (8,6,0) E (8,0,0) x
y
z
O
Dimensions in meters.
6)
9) Specify the magnitude of F3 and its direction angles so that the resultant force jFR
9 kN.
8) Observers on Earth at points A and B measure direction
cosines of position vectors to the space shuttle at C as
For : cos x
= 0.360, cos y
= 0.480 and cos z
<90°.
For : cos x
= –0.515, cos y
= – 0.606 and cos z
<90°.
Determine the x, y, z coordinates of the space shuttle
located at point C and also the shortest distance from point
C to direction AB.
A
B
C
x
y
z
(520, 640, 0) km